18958002049

素因数分解:

$7^3\times {\mathrm{137}}^1\times {\mathrm{403439}}^1$

素因数の和:403597

約数の個数: 16

約数和(自身を含む): 22269888000

約数和(自身を除く): 3311885951

約数列:

[1, 7, 49, 137, 343, 959, 6713, 46991, 403439, 2824073, 19768511, 55271143, 138379577, 386898001, 2708286007, 18958002049]

約数ペア:

[(1, 18958002049), (7, 2708286007), (49, 386898001), (137, 138379577), (343, 55271143), (959, 19768511), (6713, 2824073), (46991, 403439)]